Home / 92,020.56-126,989.57-51,731.97

Finding the Fourth Proportional to 92,020.56, 126,989.57 and 51,731.97

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Solution

The fourth proportional to 92,020.56, 126,989.57 and 51,731.97 is: 71,390.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,020.56 : 126,989.57 = 51,731.97 : x
  2. Step 2: Convert to fraction form
    92,020.56/126,989.57 = 51,731.97/x
  3. Step 3: Cross multiply
    92,020.56x = 126,989.57 × 51,731.97
  4. Step 4: Simplify right side
    92,020.56x = 6,569,420,278.67
  5. Step 5: Solve for x
    x = 6,569,420,278.67/92,020.56
  6. Step 6: Final answer
    x = 71,390.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.